package com.leifeng.security.web.controller;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.IOUtils;
import org.mockito.internal.util.io.IOUtil;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import com.leifeng.security.dto.FileInfo;

@RestController
@RequestMapping("/file")
public class FileController {
	
	private String folder="D:\\testFile_upload";
	
	@PostMapping
	public FileInfo upload(MultipartFile file) throws Exception{
		System.out.println(file.getName());
		System.out.println(file.getOriginalFilename());
		System.out.println(file.getSize());
		
		String folder="D:\\testFile_upload";
		File localFile=new File(folder,new Date().getTime()+".txt");
		file.transferTo(localFile);
		return new FileInfo(localFile.getAbsolutePath());
		
	}
	
	@GetMapping("/{id}")
	public void download(@PathVariable String id,HttpServletRequest request,HttpServletResponse response) throws Exception {
		
		try(InputStream inputStream=new FileInputStream(new File(folder,id+".txt"));
				OutputStream out=response.getOutputStream();) {
			
				response.setContentType("application/x-download");
				response.addHeader("content-Disposition", "attachment:filename=test.txt");
				
				IOUtils.copy(inputStream, out);
				out.flush();
				
		} 
	}

}
